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Stack #178867

Motion The satte in which oen object's distance from another is changing.
Reference point A place or object used for coparison to determine if an object is in motion
International System of Units A system of measurments based on multiples of ten and on established measures of mass,lenght,and time.
Meter The basic SI unit of length
Speed The distant an object travels per unit of time.
Average speed The overall rate of speed at which an object moves: clculated by dividing the total distance an object travels by the total time.
Intantaneous speed The speed of an object at one instant of time
Velocity Speed in a given direction
force A push or pull excerted on an object
Created by: sammy123